Villanueva Bendek I, Ruiz M, Vega L. Use of ultrasound for safe cannulation of difficult arteriovenous fistules in hemo dialysis. Rev. Colomb. Nefrol. [Internet]. 2019 Mar. 1 [cited 2024 May 2];6(1):48-56. Available from: https://revistanefrologia.org/index.php/rcn/article/view/297